What this MCCB carries and where it fits
The Siemens 3VA2216-6KQ32-0AA0 is a SENTRON molded case circuit breaker rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Three poles, line protection design, with a communication function for integration into a monitored distribution system. The interrupting capacity hits 242 kA at 240 VAC and stays at 187 kA all the way through 440 VAC, then drops to 121 kA at 500 VAC and 4.5 kA at 690 VAC. That 242 kA figure at 240 V means it handles the full fault current available at a typical US 240 V service entrance or large subfeed without needing a current-limiting fuse upstream — it's self-protecting at that level. Rated insulation voltage is 800 V, so it's comfortable on 480 V and 600 V class systems as well.
Selectivity and coordination — the 240 A minimum matters
The adjustable long-time pickup range runs from 240 A minimum to 1 920 A maximum. That 240 A floor means this breaker won't coordinate below that threshold — if your downstream load draws less than 240 A fault current, the breaker may not see it as a fault. That's typical for a 160 A frame; the pickup range is set relative to the 160 A rating. The 32 A initial value is the starting point for the short-time or instantaneous adjustment, not the continuous rating. No undervoltage release fitted, no trip indicator on the front. Ground-fault monitoring uses summation current formation on the L-conductor — that's a residual-current method, not a zero-sequence sensor, so it catches line-to-ground faults on the load side.
Panel fit — dimensions and environment
Width 105 mm, height 181 mm, depth 86 mm. That 86 mm depth is the body only — add handle throw and wiring space behind the panel. Mounts on a DIN rail or direct panel; the 105 mm width is a standard 3-pole MCCB footprint, so it fits a typical 3-phase distribution board without crowding adjacent breakers. Operating range from -25 °C to 70 °C; storage from -40 °C to 80 °C. Max power loss is 19.7 W — negligible for thermal budgeting in a ventilated enclosure, but in a sealed box with other breakers, sum the losses. Communication function is present, so expect a plug-in module or internal bus for remote monitoring; the exact protocol isn't listed here, but the SENTRON 3VA2 series typically supports PROFIBUS or PROFINET via a communication module.